4140 Steel

Steel name: 4140
Diagram No.: 207
DIN designation: 42CrMo4
JIS designation: G4105, SCM440
AISI/SAE designation: 4140
Chemical composition in weight %: 0.40% C, 0.80% Mn, 0.95% Cr, 0.25% Mo
Steel group: Structural steels
Properties: No data
Applications: Medium to heavy duty shafts, gears, axles, rods, spindles, crow bars, nuts, etc.
Reference: Not shown in this demo version.
Diagram note: Test specimen square 100 mm, quenched from 860oC/oil.

Heat Treatment
Hardening in oil: 850-880oC
Tempering: See the diagram

Diagram Tempering Temperature - Mecahnical Properties

Price: 20.00 US $
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